Category PS4 Jailbreaking       Thread starter PSXHAX       Start date Jun 4, 2017 at 11:48 PM       11,343       26            
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Since the initial 1.76 PS4 Playground and 3.55 PS4 Playground for Firmware (WIP) PlayStation 4 developer zecoxao has been working with the help of bigboss, wildcard and droogie on porting the Dlclose Exploit to PS4 Firmware 1.01 in hopes of finding undiscovered bugs and vulnerabilities that may be exploitable! ;)

Download: PS4 Playground 1.01 (GIT) / SceShellCore.elf (8.97 MB)

According to @zecoxao, to quote: "Most offsets SHOULD be fine and most stuff is working BUT we do NOT have code exec working yet. if anyone knows why, please contact us :)"

From the file: PS4-playground

A collection of PS4 tools and experiments using the WebKit exploit. This is for firmware 1.76/1.01 only at the moment.

Although initially just a framework to help write and execute ROP chains, the playground now allows for running unsigned binaries compiled, and booting Linux from USB.


A live demo can be tried here.

You should clone the repo and upload it your own server if you wish to make changes:
git clone git://
You can also download a zip of the latest source here.


After executing a test, you should either refresh the page, or close and reopen the browser entirely; running multiple experiments sequentially is not reliable. If you are using a web browser view in an app which isn't the Internet Browser, you can use the Refresh button under Misc to refresh the page.

Code Execution

Click "Go", and wait for the text "Stage: Waiting for payload..." to appear.

Send the desired binary over TCP to your PS4 on port 9023; you can use any standard networking tool to do this, or my custom Windows tool, WiFi-Loader

If you're on Linux, the easiest way is probably to use netcat:
nc -w 3 9023 < *.bin
After you have sent the binary, it will be executed automatically.

Linux loader

You need a FAT32 formatted USB drive plugged in on any PS4's USB port with the following files on the root directory:
  • bzImage : Kernel image that will be loaded. Recommended to use this sources to compile it.
  • initramfs.cpio.gz : The initial file system that gets loaded into memory during the Linux startup process. This one is recommended.
The file names must match with the above and you can have more files on the same USB drive. From there you can setup the environment to run from an NFS share or from an external drive via USB (recommended) and boot a complete distro!

  • Get PID - Get process ID
  • Get Login - Get login name and leak a kernel pointer
  • Get Loaded Modules - Get a list of currently loaded modules, index and ID
  • Dump Loaded Module - Dump a currently loaded module (use Get Loaded Modules to see all available)
  • Load Module - Load an additional module from this list
  • Once you have loaded a module, refresh the page, and you will be able to dump it.
  • Browse - File Browser
  • Get PSN username - Read your PSN username from account.dat
  • Get Sandbox Directory - Get the name of the current sandbox directory (10 random characters which change each reboot)
  • Get Stack Protection - Get stack base, size, and protection
  • Get Stack Name - Get stack base, size, and name
  • Send Message - Send a TCP message to the specified IP and port
Receiving data
  • File and memory dumps will be sent over TCP to the IP and port you specified.
  • You can use a simple tool like TCP-Dump to write the data to a file.
*(uint16_t *)0xFFFFFFFF827E31EE = 0x9090; 
*(uint16_t *)0xFFFFFFFF827E31FD = 0x9090; 
*(uint16_t *)0xFFFFFFFF827E3202 = 0x9090;
Patches for decrypt_pup_header (1.76):
*(uint16_t *) 0xFFFFFFFF827C445C = 0x9090;
*(uint16_t *) 0xFFFFFFFF827C446B = 0x9090;
*(uint16_t *) 0xFFFFFFFF827C4470 = 0x9090;
Thanks to @ArthurBishop and @Bultra for the heads-up before the weekend in the PSXHAX Shoutbox! (y)
PS4 Playground Dlclose for Firmware 1.01 (WIP) Port by Zecoxao.jpg


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Senior Member
is that the 1st ps4 fw ever?
I understand that the older the firmware is the more bugs it has, but if these bug are patched on most recent firwares, whats the point?


Staff Member
Well, Sony only patched those they found internally or the vulnerabilities reported to them... if one of the devs finds an unreported / unpatched exploit it could be quite handy to them :)

Here's another few reasons:



Lets work it out
Senior Member
True hard work. Im proud of them. They did a great thing, ported exploit to very old firmware which NO ONE USES and NO ONE CARE instead of doing something useful. Wish them luck in their useless attempts to make something on 1.01 working in future.

Remember, do not even touch signature checks. No one cares for free games, everybody just want to cheat online in GTA and CoD and that millions of ppl begging for games are just liars, don't let them fool you. They are very rich and one game doesnt cost 1/10 of their income, trust me. True scene never dies.

Best regards
How much time do you think it takes for someone to code an exploit? remember they all have lives to live. Most of the people not understanding the importance of any small acomplishment are those who never started anything from scratch.

Where is the logic in buying an expensive game console just to get pissed when some stranger doesnt work in finding a way to let you play free backup games?

After the exploit is found people will still complain because they will need someone to actually buy the games and share with them for free.
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